Bicycle lock



July 29, 1952 M FALL 2,604,774

BICYCLE LOCK Filed'July 12, 1949 3 Sheets-Sheet l le-t 3 IN VEN 7 OR.

te M faZZ ATTORNEYS July 29, 1952 B, MCFA L 2,604,774

BICYCLE LOCK Filed July 12, 1949 3 Sheets-Sheet 2 vj.3. i

2 '9 INVENTOR.

Bruce M fcz ZZ A'ITD RN EYE July 29, 1952 B, C A 2,604,774

BICYCLE LOCK Filed July 12, 1949 s Sheets-Sheet s firuce M Fa Z Z flwyfmr.

ATTORNEYS Patented July 29, 1952 i Bruce McFaIlQ JohnsoiiQity, Tenn. v Application'July12,1949, SerialNol104350 This invention relates to looks for bicyclesand the like particularly of the type that extend through the spokes of a wheel, and in particular a lock element pivotally and slidably mounted on a bar of the frame of the bicycle and having a tongue which, in the locking position,extends through a wheel with the extended end thereof loosely held'in a socket on a bar of theframe positioned on the opposite side of the wheel.

The purpose of this invention is to provide a bicycle lock that remains permanently attached to the bicycle and that locks the bicyclethrough a wheel and positively preventsturning of the wheel. V

With the usual type of bicycle look, even with an extended U-shaped bolt or bail it is difficult to insert parts of the look through a wheel so that the lock positively engages bars of the frame on both sides of the wheel. With this thought in mind this invention contemplates a bicycle lock including a tongue that extends through a wheel, between the spokes thereof for engagement with a socket on a bar on the opposite side of the wheel wherein the tongue may be withdrawn and turned to a positionaligned with a bar on which it is mountedso that the bicycle may beunlocked and used without removing the look from the frame.

The object of this invention is, therefore, to provide an improvedbicycle lock that is formed with clamping elements permanently secured to bars of the bicycle frame on opposite sides of a wheel thereof and wherein a tongue with a cylinder lock incorporated therein is slidably and pivotally mounted on one of the clamps and positioned to coact with the other clamp in the locking position. v

Another object of the invention is to provide a bicycle lock that may readily be mounted onthe usual type of bicycle.

A further object of the invention is to provide an improved bicycle lock which is of a simple and economical construction.

With these and other objects and advantages in view the invention embodies a clamp positioned on a bar of a bicycle frame and having a stud, T-shaped in cross section positioned in a socket of a base having a tongue extended therefrom, with a locking element for securing the base on the stud, and with a socket positioned on the bar of the frame on the opposite side of the wheel for receiving an extended end of the tongue.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings wherein:

" a (01; iii-"227)" Figure 1 is a front elevational view of the lock with the lock in the locking position and with parts thereof mounted on bars of a bicycle frame onopposite sides of a wheel and in which'the wheel is shown in section. v

Figure 2 is a sectional plan through the lock taken on line 2-2 of Figure 1.

Figure, 3 is a crosssection through the base of the locktaken on line 3-3 of Figure 2.

Figure 4 is a plan view of a clamp on which the base of a lock is positioned, the lock being omitted and the ends of the bars of theframe being broken away.

Figure 5 is a view looking toward the under surface of the base of the lock with the tongue and other partsof the lock omitted'and taken online 5--5 of Figure 2.

V 'Figure 6 is a detail illustrating the inner surwith the bar of the frame on which the lock is mounted.

M Figure'9 is a detail illustrating the position of the tongue of the lock in a wheel wherein a flange on the upper edge of the tongue engages the adjusting nut of a spoke of the wheel, the

tongue being shown in section.

Referring now to the drawings wherein like reference characters denote corresponding parts the bicycle lock of this invention includes a base or block IQ pivotally mounted on the end of an elongated plate providing a tongue II with a lock cylinder I2 incorporated in the base and provided'with a lock bolt l3 that is positioned to extend under a head M of a stud 15 on a clamp I6, and the tongue is positioned to extend through a socket H of a clamp l8 positioned on the bar of the frame on the opposite side of a wheel i9.

The base 10 is provided with a socket 20 which receives the head 14 of the stud l5 and also a cylindrical opening 2| in which the lock cylinder I2 is positioned, as shown in Figure 2. The lock cylinder is provided with a key slot 22 into which pins 23 that extend through the cylinder and into the base [0, are positioned. The lock bolt i3 is secured to the inner end of the cylinder [2 by a screw 24 which also secures the cylinder in the opening of the base ID. The base In is also provided with a cover plate 25 that is positioned to cover the end of the lock cylinder to prevent dirt, and the like, entering the key slot, and the cover plate is pivotally mounted on the base by a pin 26 and the opposite side is provided with a knob 21 by which it may be actuated to a position at one side of a base when it is desired to insert a key in the key slot.

The base In is pivotally mounted between flanges 28 and 29 of the tongue H by. a, pin 30 and with the parts assembled, as illustrated in Figure 2 wherein the lock bolt I3 is extended under the head M of the stud I5 the tongue II- will be retained with the outer end in the slot IT is provided of the clamp H3. The tongue II with an elongated slot 3| and with the lock turned to the open position the base is pivoted outwardly to the position illustrated in dotted lines in Figure 2 and as shown in full linesvi'n Figure 7, and with the parts in this position the tongue 1 l is slid over the stud 15 with the stud travelingin the slot 31- and when the tongue is withdrawn- -tothe extreme position it is turned upwardly, tothe position shown-in Figure 8 wherein the base is replaced over the head of the stud and the lock bolt turned to the locking position for securing. the loek in the unlocked or open position, as illustrated in-Fi'gure 8 A spring 3i isprovided in a socket 33 inthe head of the stud ['5 for resiliently urging-the base away from the tongue" and stud when the lock isreleased; The stud l5 is mounted in a circular base 34 f a clamp 16 and the clamp is secured to a bariifi of" a bicycle-frame by a clamp" 36 having extended ends 31- and 38 which are secured in the clamp l6 bybolts 39 and 40; respectively; Lhe heads of the bolts are positioned in the part- 34 of the clamp sothat they are covered by the tongue and base when thel'ock elements are in thelocking position.

The clamp I8 is provided with an. outwardly extended tongue 4! in which thesocliet H- is positioned and this clamp is provided with flanges 42-f and as by which i t' is clamped around a bar 4 4 of a bicycleframe-bya bolt 45' with a nut 46 thereon. The head 4-1- of the bolt 45 positioned under the tongue H with the locking elements in thelocking position whereby it is inaccessible when the lock is locked;

-Asillustrated in Figures 2 and'9 the flange28 r II is extended between the spokes with the end thereof in the socket ll of the clamp I8. With the parts in this position the lock cylinder is turned to the locking position and the plate moved to the position as illustrated in Figure 1. To unlock the lock the plate 25 is slid toward one side, the lock cylinder turned so that the lock bolt l3 disengages the head [4 of the stud [5. The base 10 is then opened to. the position shown in. dotted lines in Figure, 21 and the tongue slid outwardly as shown in Figure 7. The tongue @with the base thereon may then be turned upwardly as shown in Figure 8 and the tongue withtthe base secured therein locked in this position,.

It'wl'li be understood that modifications may be made in; thei'parts without departing from the spirit of the invention.

What is claimed is:

l. A bicycle lock comprising an elongate plate having a slot therei n, a block pivotally mounted orrone end of the said elongated-plate, said block hayinga-cavity in the under surface thereof and having a lock cylinder therein, and a clamphaving 'astud-- with ahead on" the outer end extended therefrom with the stud extended through the slot-of the elongated plate and with the head thereof-extended into the cavity in the under side of the said block, said lock cylinder-having aloek bolt on theinnerend andisaid lock bolt positioned tocxtend under the head of the stud of the said-clamp for securing" the parts in a locked position.

2. In a bicycle lock, the combination which comprises a clamp, a stud having; aheadon" the outer end-carried by the'said-clamp, an elongated plate having a slot therein positioned over the head of' thesa-id stud, a block pivotally mounted on the end of the elongated plate, said block'having acavity in the undersurfaceand also having alock cylinder therein and said block is positi'one'd- With the cavity in' the under surface thereof extended over the head of' the' stud, and a lock bolt on theinner end of the lock cylinder positioned to coast withthe head of the stud forsecu'ring the. parts in assembled relation".

- BRUCE MCFALL.

REFERENCES GITEB" The following, references-are of record in the file: of this patent: I

' UNITED; STATES PATENTS Number- Name Date 570521" Turton' Nov; 3,,1896 616,051 Badoni .Dec. 13, 1898 151141585 Graver Oct; 20; I914 2;23-23-10 Boyl'er' Feb. 18;,19'41 

